.fixed{
    position:fixed;
    z-index:9999;
    top:0;
    left:0;
}
#actGotop {
    position: fixed;
    bottom: 50px;
    right: 50px;
    width: 150px;
    height: 195px;
    display: none;
    z-index: 100;
}
#actGotop a, #actGotop a:link {
    width: 150px;
    height: 195px;
    display: inline-block;
    background: url(../images/gotop.png) no-repeat;
    outline: none;
}

#actGotop a:hover {
    width: 150px;
    height: 195px;
    background: url(../images/gotop.gif) no-repeat;
    outline: none;
}